[INFO] fetching crate portal-jsc-mob-backend-common 0.8.0-pre.0...
[INFO] checking portal-jsc-mob-backend-common-0.8.0-pre.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate portal-jsc-mob-backend-common 0.8.0-pre.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate portal-jsc-mob-backend-common 0.8.0-pre.0
[INFO] finished tweaking crates.io crate portal-jsc-mob-backend-common 0.8.0-pre.0
[INFO] tweaked toml for crates.io crate portal-jsc-mob-backend-common 0.8.0-pre.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate portal-jsc-mob-backend-common 0.8.0-pre.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate portal-jsc-mob-backend-common 0.8.0-pre.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4540ec1d93542fa56974b1101f81a7a0215761539dff4118944ab47ea542ec65
[INFO] running `Command { std: "docker" "start" "-a" "4540ec1d93542fa56974b1101f81a7a0215761539dff4118944ab47ea542ec65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4540ec1d93542fa56974b1101f81a7a0215761539dff4118944ab47ea542ec65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4540ec1d93542fa56974b1101f81a7a0215761539dff4118944ab47ea542ec65", kill_on_drop: false }`
[INFO] [stdout] 4540ec1d93542fa56974b1101f81a7a0215761539dff4118944ab47ea542ec65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 070f2d79b490caad463f8262a0362eacb23c46788d47968b5e34ee5efb2aa7cd
[INFO] running `Command { std: "docker" "start" "-a" "070f2d79b490caad463f8262a0362eacb23c46788d47968b5e34ee5efb2aa7cd", kill_on_drop: false }`
[INFO] [stderr]     Checking portal-jsc-mob-backend-common v0.8.0-pre.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `collections::btree_map::BTreeMap` and `self`
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     collections::btree_map::BTreeMap,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     vec::{self, Vec},
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]   --> src/lib.rs:53:25
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 let (a, d) = s.split_at(a);
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `collections::btree_map::BTreeMap` and `self`
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     collections::btree_map::BTreeMap,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     vec::{self, Vec},
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]   --> src/lib.rs:53:25
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 let (a, d) = s.split_at(a);
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "070f2d79b490caad463f8262a0362eacb23c46788d47968b5e34ee5efb2aa7cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "070f2d79b490caad463f8262a0362eacb23c46788d47968b5e34ee5efb2aa7cd", kill_on_drop: false }`
[INFO] [stdout] 070f2d79b490caad463f8262a0362eacb23c46788d47968b5e34ee5efb2aa7cd